Tracy Liu serves as Executive at ACM Research, Inc., where they oversee executive responsibilities. Since joining the company, Tracy Liu has executed 18 insider transactions totaling $2.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Sep 17, 2025 involved selling 15,000 shares valued at $495.0K.
Tracy Liu currently holds 110,772 shares of ACM Research, Inc. (ACMR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Tracy Liu has been a net seller of ACMR stock. They have purchased $0 and sold $2.4M worth of shares.
Tracy Liu's most recent insider trade was on Sep 17, 2025, when they sold 15,000 shares at $33.00 per share.
Get notified when new Form 4 filings are submitted
| $1.00 |
| Discretionary |
| Jul 15, 2025 | ACMR | $15.0K | Option Exercise | 15,000 | $1.00 | Discretionary |
| Jul 15, 2025 | ACMR | $450.0K | Sale | 15,000 | $30.00 | Discretionary |
| Feb 28, 2024 | ACMR | $70.0K | Option Exercise | 12,500 | $5.60 | Planned |
| Feb 28, 2024 | ACMR | $315.0K | Sale | 12,500 | $25.20 | Planned |
| Dec 26, 2023 | ACMR | $200.0K | Sale | 10,000 | $20.00 | Planned |
| Dec 26, 2023 | ACMR | $56.0K | Option Exercise | 10,000 | $5.60 | Planned |
| Nov 20, 2023 | ACMR | $268.6K | Sale | 15,000 | $17.91 | Planned |
| Nov 20, 2023 | ACMR | $110.4K | Option Exercise | 15,000 | $7.36 | Planned |
| Feb 12, 2021 | ACMR | $240.0K | Sale | 2,000 | $120.00 | Discretionary |
| Feb 10, 2021 | ACMR | $176.0K | Sale | 1,600 | $110.00 | Discretionary |
| Feb 9, 2021 | ACMR | $44.0K | Sale | 400 | $110.00 | Discretionary |
| Jan 6, 2021 | ACMR | $200.0K | Sale | 2,000 | $100.00 | Discretionary |
| Sep 10, 2020 | ACMR | $100.9K | Option Exercise | 6,000 | $16.81 | Discretionary |
| Mar 18, 2020 | ACMR | $60.0K | Option Exercise | 20,000 | $3.00 | Discretionary |
| Aug 23, 2019 | ACMR | $28.3K | Disposition | 2,143 | $13.20 | Discretionary |
| Jun 28, 2018 | ACMR | $50.0K | Option Exercise | 16,667 | $3.00 | Discretionary |